Table 2. Validity of ADA as a diagnostic test.
Cases | Sensitivity % (CI) | Specificity % (CI) | PPV % (CI) | NPV (%) (CI) | LR+ (CI) | LR− (CI) |
Confirmed TB pleuritis (n = 72) | 94 (86–98) | 95 (82–99) | 97 (89–99) | 90 (76–97) | 18.9 (4.9–73 | 0.06 (0.02–0.15) |
Clinical TB (n = 125) | 94 (88–97) | 95 (82–99) | 98 (93–100) | 84 (70–93) | 18.9 (4.9–73.0) | 0.06 (0.03–0.12) |
Total TB Pleuritis (n = 197) | 94 (90–97) | 95 (82–99) | 99 (96–100 | 77.5 (63–88) | 18.9 (4.9–72.9) | 0.06 (0.03–0.10) |
PPV = positive predictive value; NPV = negative predictive value; CI = 95% confidence interval; LR+ = positive likelihood ratio; LR− = negative likelihood ratio.